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M2488 PRODUCT GUIDE MTU DIAGNOSTIC SPECIFICATIONS
April 1997 CG00000-011503 REV. A H-7
H-4.3.4.1 M1:LOAD: Cartridge loading time measurement
Load a cartridge and measure the following operation time during loading. The cartridge type
may be normal or E.
H-4.3.4.2 M2:TPPFM: Measure the tape acceleration/deceleration time.
Tape acceleration or deceleration time
Measure the tape acceleration or deceleration time in a read-write operation.
- Measuring command: Forward Read, Back Read, or Write
- Measuring tape position: Wrap-1 sector 5 (A sector is able to be changed by “CHK
SECT”)
- Unit of measurement: 1 msec
H-4.3.4.3 M3:AC/PS: Measure the tape access/positioning time.
Access time
Measure the time from a run command starts until gap-in is output.
- Measuring command: Forward Read, Back Read, or Write
- Measuring tape position: Wrap-1 sector 5 (A sector is changed by “CHK SECT”)
- Unit of measurement: 1 msec
Positioning time
Measure the positioning time.
- Measuring command: Forward Read, Back Read, or Write
- Measuring tape position: Wrap-1 sector 5 (A sector is changed by “CHK SECT”)
- Unit of measurement: 1 msec
H-4.3.4.4 M4:MODCH: Mode change time measurement
Measure the mode change time in the following command combinations:
Wrap 1 FRD -> Wrap 1 BRD
Wrap 1 FRD -> Wrap 1 WRT
Wrap 1 BRD -> Wrap 1 FRD
Wrap 1 BRD -> Wrap 1 WRT
Wrap 1 WRT -> Wrap 1 BRD
Wrap 2 FRD -> Wrap 2 BRD
Wrap 2 FRD -> Wrap 2 WRT
Wrap 2 BRD -> Wrap 2 FRD
Wrap 2 BRD -> Wrap 2 WRT
Wrap 2 WRT -> Wrap 2 BRD
- Measuring tape position: Wrap-1 sector 5 (A sector is changed by “CHK SECT”)
- Unit of measurement: 1 msec
Loading time Measure the time from when the loader starts moving and reaches the down posi-
tion. (Unit: 1/10 sec)
Clutch winding time Measure the time from when the loader reaches the down position until clutch
winding finishes. (Unit: 1/10 sec)
Threading time Measure the time from when the threader starts working until the leader block
enters the machine reel. (Unit: 1/10 sec)
BOT shaking time Measure the time from when the leader block enters the machine reel until the
tape stops at wrap-1 EOT after shaking. (Unit: 1/10 sec)
Depending on the loaded cartridge, measured data is stored in either of two areas
reserved for normal and E cartridges.